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aria-expanded attribute (aria)

Screen Reader support level: partial (80/88)

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About this feature

Indicates whether the element, or another grouping element it controls, is currently expanded or collapsed.

Age of results

Results across all tests for this feature range from 8 months ago to 4 years ago. Detailed dates and version information can be found in associated tests.

Failing and partial results are between 8 months ago and 3 years ago.

Expectations

What are expectations?

Screen Reader support by expectation

ExpectationJAWSNarratorNVDAOrcaTalkBackVoiceOver (iOS)VoiceOver (macOS)
ChromeEdgeFirefoxEdgeChromeEdgeFirefoxFirefoxChromeSafariSafari
MUST convey the "false" valuesupportedsupportedsupportedsupportedsupportedsupportedsupportedpartial (2/3)supportedsupportedpartial (2/3)
MUST convey the "true" valuesupportedsupportedsupportedsupportedsupportedsupportedsupportedpartial (2/3)supportedsupportedpartial (2/3)
MUST convey change in valuepartial (1/2)partial (1/2)supportedsupportedsupportedsupportedsupportedsupportedsupportedpartial (1/2)partial (1/2)

Expectation: convey the "false" value

Strength of this expectation for different types of assistive technologies:

  • Screen Readers: MUST
  • Voice Control: NA

Examples:

  • Most screen readers will announce the state as "collapsed"
Screen Reader support for 'MUST convey the "false" value'
TestJAWSNarratorNVDAOrcaTalkBackVoiceOver (iOS)VoiceOver (macOS)
ChromeEdgeFirefoxEdgeChromeEdgeFirefoxFirefoxChromeSafariSafari
APG Editable Combobox With List Autocomplete Example applied to: combobox rolesupportedsupportedsupportedsupportedsupportedsupportedsupportednonesupportedsupportednone
APG Editable Combobox With List Autocomplete Example applied to: button elementsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupported
Disclosure widget (show/hide) applied to: button elementsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupported

Expectation: convey the "true" value

Strength of this expectation for different types of assistive technologies:

  • Screen Readers: MUST
  • Voice Control: NA

Examples:

  • Most screen readers will announce the state as "expanded"
Screen Reader support for 'MUST convey the "true" value'
TestJAWSNarratorNVDAOrcaTalkBackVoiceOver (iOS)VoiceOver (macOS)
ChromeEdgeFirefoxEdgeChromeEdgeFirefoxFirefoxChromeSafariSafari
APG Editable Combobox With List Autocomplete Example applied to: combobox rolesupportedsupportedsupportedsupportedsupportedsupportedsupportednonesupportedsupportednone
APG Editable Combobox With List Autocomplete Example applied to: button elementsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupported
Disclosure widget (show/hide) applied to: button elementsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupported

Expectation: convey change in value

Rationale:

The user needs to know that the value was successfully changed.

Strength of this expectation for different types of assistive technologies:

  • Screen Readers: MUST
  • Voice Control: NA

Examples:

  • If the element with aria-expanded has focus when its expanded state changes, the new state value will be announced (either "expanded" or "collapsed"). Some screen readers will re-announce the entire element, including name, role, and other properties and states.
Screen Reader support for 'MUST convey change in value'
TestJAWSNarratorNVDAOrcaTalkBackVoiceOver (iOS)VoiceOver (macOS)
ChromeEdgeFirefoxEdgeChromeEdgeFirefoxFirefoxChromeSafariSafari
APG Editable Combobox With List Autocomplete Example applied to: combobox rolesupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportednonenone
Disclosure widget (show/hide) applied to: button elementpartialpartialsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupportedsupported
TestLast update
APG Editable Combobox With List Autocomplete Example2023-08-22
Disclosure widget (show/hide)2021-07-23

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